m***@yahoo.co.uk
2012-01-13 15:53:56 UTC
After the delivery of the new Thameslink rolling stock, could a fleet
of cascaded class 319 EMUs become dedicated for the TransManche Metro
between Kent and Nord-pas-de-Calais?
I understand that the ceremonial workings through the Channel Tunnel
after competition with 319008/009 in 1993 were modified with extended
pantographs to meet the Eurotunnel catenary height and also worked
under possession due to not being equipped with TVM430.
Pros;
- dual voltage between former SR 750V DC third rail and 25kv AC
overhead catenary, so can operate on classic lines in GB and thus not
confined to HS1. In regards to the pantograph height differential as
per the ceremonial 319s - if the trains would operate predominately in
Kent only with the 25kv AC option being used excelusively for the
Channel Tunnel and France, the pantograph could be fixed to ET cantery
height with no regard to the GB height, I don't know how this would
compare with French catenary height.
- retention toilets, so they won't crap all over the Tunnel.
- frontal cab evacuation doors.
Cons;
- no TVM430 or KVB.
- no fire doors, however they could probably be retrofitted by the
removal of the existing the hinged doors with sliding doors, as per
the Railcare 317/7 refurbishment for the Stansted Express (http://
www.railfaneurope.net/pix/gb/...d_Express5.jpg).
- platform height differential between GB/F/ET standards.
- no pressure sealing, 319s have hopper windows - so there would
possibly be some clashes with atmospherics when inside the CT.
All of these technicalities can also be applied to the 375/377 fleet
if they were ever to be proposed for use, too.
of cascaded class 319 EMUs become dedicated for the TransManche Metro
between Kent and Nord-pas-de-Calais?
I understand that the ceremonial workings through the Channel Tunnel
after competition with 319008/009 in 1993 were modified with extended
pantographs to meet the Eurotunnel catenary height and also worked
under possession due to not being equipped with TVM430.
Pros;
- dual voltage between former SR 750V DC third rail and 25kv AC
overhead catenary, so can operate on classic lines in GB and thus not
confined to HS1. In regards to the pantograph height differential as
per the ceremonial 319s - if the trains would operate predominately in
Kent only with the 25kv AC option being used excelusively for the
Channel Tunnel and France, the pantograph could be fixed to ET cantery
height with no regard to the GB height, I don't know how this would
compare with French catenary height.
- retention toilets, so they won't crap all over the Tunnel.
- frontal cab evacuation doors.
Cons;
- no TVM430 or KVB.
- no fire doors, however they could probably be retrofitted by the
removal of the existing the hinged doors with sliding doors, as per
the Railcare 317/7 refurbishment for the Stansted Express (http://
www.railfaneurope.net/pix/gb/...d_Express5.jpg).
- platform height differential between GB/F/ET standards.
- no pressure sealing, 319s have hopper windows - so there would
possibly be some clashes with atmospherics when inside the CT.
All of these technicalities can also be applied to the 375/377 fleet
if they were ever to be proposed for use, too.